Evaluation criterion of refrigerant environmental performance based on natural degree

According to deepened understanding of environmental nature of refrigerants, and based on life cycle analysis and comprehensive consideration, some new and more scientific evaluation standards are proposed, so the existing evaluation system is gradually improving and developing. Proposes an evaluation system taking natural degree as the standard and establishes the integrated quantitative analysis model through researching of several evaluation criteria and understanding of natural characteristics of refrigerants. Predicts and analyses the future development of refrigerants on the view of natural degree evaluation.